KEEWAY FACT 50 4T Maintenance Manual page 34

Diagnosis on burnt-out bulbs
The horn works abnormally or
does not make sound; the
steering lamp emits weak light.
1. Check whether the conductor joint
connecting battery is in good condition.
2. Check whether the electrolyte is deficient
inside the battery.
3. Check whether the electrolyte density
inside the battery is too low.
The lamp is light.
Bad contact inside the
illumination switch.
Turn the ignition switch; press the horn or turn the steering
No voltage
Open circuit between
connector and the battery
The lamp is not light.
Open circuit or short circuit
between the illumination switch
and the lamp.
Burnt-out bulbs
lamp switch.
The horn makes loud sound and the
steering lamp emits bright light.
Remove the connector between the rectifier
regulator and the cable assembly; check whether
there is open
lighting/charging coil of electromagnetic motor
and the rectifier regulator with an ohm meter.
N
Set the multimeter to DC voltage 0V~20V;
measure the voltage between the conductor
terminal (connector to battery) (normally red
wire or red/white wire) and the negative pole.
the
34
circuit between the
Y
Connection
Voltage
available
Check whether the
regulator works normally.
rectifier